An industrial epoxy primer is one part of a protective coating system. A useful specification connects the substrate and its exposure to surface preparation, compatible coats, application conditions, and evidence that the finished work meets the agreed requirements.
This guide helps fabrication buyers and maintenance planners prepare that specification with a coating supplier and inspector. Collect photographs, substrate information, the existing coating history, access constraints, and the expected service environment. Qualified applicators must use the actual technical and safety data sheets and the site's controls for preparation and application.
Describe the service before naming a primer
Record whether the surface faces outdoor weather, condensation, splash, immersion, chemicals, abrasion, or elevated temperature. Include cleaning chemicals and shutdown conditions. A coating approved for one substrate or exposure may need a different preparation or complete system elsewhere. For maintenance, ask how the existing coating's condition and compatibility will be established.
Axalta's industrial technical data sheet library is the starting point for named Corlar products. Match the exact product, activator, market, and document revision to the supplier's proposal. Obtain the corresponding safety data sheets for each component. A product family name alone cannot establish the requirements of the supplied material.
On a narrow screen, scroll the table horizontally. Keyboard users can focus it and use the arrow keys.
| Decision | Information to specify | Evidence to request |
|---|---|---|
| Substrate and exposure | Metal or other substrate, condition, contaminants, service environment. | Written suitability of the complete system for that service. |
| Preparation | Cleaning, required surface condition/profile, edge and weld treatment. | Approved method, acceptance criteria, and inspection hold point. |
| Application | Exact components, mixing basis, induction if required, pot life, film range. | Applicable data sheets and batch/application records. |
| Cure and overcoat | Actual surface conditions, elapsed time, compatibility, service release. | Recorded conditions and supplier-approved recoat or repair procedure. |
Read the data sheet as a set of conditions
Locate the approved substrates, preparation requirements, mixing ratio and its basis, permitted thinner, usable time after mixing, recommended wet and dry film thickness, and drying/recoat information. Read the notes surrounding each value. Temperature, film build, and application method can change its meaning.
The published Corlar LV PR 178 technical data sheet illustrates why this matters: recoat and cure information is tied to conditions, and an exceeded recoat window requires additional preparation. Confirm the current applicable revision with Axalta before specifying this product. This guide deliberately leaves the project's operating values to that approved document.
Write down who resolves conflicts between drawings, the project specification, and the product data sheet. Resolve them before application. For an existing structure, create a representative trial area where the supplier requires one, and agree on the inspection method and acceptance criteria in advance.
Make inspection part of the work sequence
Inspect the prepared surface before it is hidden. Retain the preparation method, observations, environmental readings required by the specification, and release decision. During application, record component batch numbers, mixing time, location, coat identity, and the conditions relevant to pot life and curing. Link each record to an identifiable area of the work.
Film-thickness measurements need an instrument suited to the coating and substrate. DeFelsko distinguishes calibration, verification, and adjustment; substrate geometry and roughness can affect readings. Follow the instrument and project methods for verification, adjustment, sampling, and interpretation. Record individual results and locations so a thin or thick area can be found again.
Release the area with a complete record
Define how holidays, contamination, missed recoat windows, or out-of-range measurements are recorded and repaired. Have the responsible coating specialist approve the repair system and reinspection. Broad claims such as corrosion resistance become meaningful only when the substrate, exposure, preparation, and installed system are documented together.
The handover should contain approved documents, batch and application records, area maps, instrument checks, inspection results, repairs, and the service-release decision. AMPP's coating inspector program identifies surface preparation, inspection criteria, testing, and failure modes as distinct areas of inspection competence. Assign those responsibilities explicitly.
Keep later damage and maintenance observations against the same area map. Reassess the specification if the exposure, cleaning regime, substrate, or coating product changes.
Use the working record
Download the editable coating system record. Save a copy, complete the actual requirements and evidence fields, and review open issues with the responsible owner. The plain-text record includes instructions, units where needed, the fictional example, and source references.